Concrete Mix AI
Concrete Mix AI is a browser-based toolkit for concrete professionals, civil engineers, contractors, estimators, inspectors, and students. Its free plan takeoff service accepts vector PDF or DWG plan sets and returns estimated concrete, rebar, and CMU quantities traced to the drawings, with calculation explanations and questions for engineer review. It reads schedules, legends, notes, and dimensions, checks scale against drawing dimensions, and flags conflicts between schedules, drawings, and specifications. Users receive a private takeoff link and quantities CSV by email. The takeoff provides quantities, not job prices or bids; estimates should be verified before ordering. The site also offers concrete calculators, including a material-cost estimator, ACI certification practice exams in English and Spanish, and building-code tools. Takeoffs, calculators, exams, and code tools are free, and takeoffs require no account.
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PreConstruct AI
PreConstruct AI is a web-based construction takeoff and estimating application for subcontractors bidding interior finishes, concrete, and wood framing work from PDF drawing sets. It reads drawing scales and uses plan notes, schedules, and partition legends to help identify and measure walls, ceilings, and concrete quantities. AI-assisted wall suggestions are in beta and are reviewed, approved, or adjusted by the estimator. Approved quantities become material lists for items such as studs, board, insulation, tape, compound, paint, concrete, and rebar, with calculations and drawing-sheet references. Estimators can apply their own material prices, create proposal PDFs, and export data to Excel or CSV. Projects can use imperial units, metric units, or both. The application supports estimating workflows; estimators review measurements and quantities before submitting a bid.
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Mix Chapter
Mix Chapter offers an online concrete plan takeoff service for concrete contractors, estimators and other construction professionals. Users submit plans as a vector PDF, DWG or DXF and receive a private link to the takeoff and a quantities CSV. The service estimates concrete quantities by element, reinforcing steel quantities, and concrete masonry unit block and grout counts. Results are shown on the project drawings with calculation details so users can review how quantities were derived. The workflow checks drawing scale against dimensions on the plans and supports estimating and preliminary material planning. Takeoffs are estimates, not bids, and should be reviewed against project documents before materials are ordered. Access is free, with one takeoff per email address every 24 hours and up to three per company email domain each day; no account is required.
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BOQIFY
BOQIFY is an AI-powered construction takeoff and bill of quantities platform for construction teams that prepare estimates and project documentation. It analyzes architectural and engineering plans to measure and count building elements, then organizes the results into structured bills of quantities. Users can review and edit each quantity and trace it to its source sheet, layer, and drawing entity. The software accepts DWG, DXF, vector PDF, and Revit-related files, and exports results to Excel, PDF, CSV, and JSON. It also supports priced BOQs and API connections to external systems. Estimators and quantity surveyors can use its outputs for project scope review, cost planning, and bid preparation.
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